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Metal Fabrication

MIG/MAG Welding

Air Products' shielding gases are commonly used in several welding processes, mainly MIG/MAG and TIG welding. The selection of a suitable welding gas is essential for the welding process. The welding gas not only protects the weld metal from the surrounding air, it can also contribute to higher productivity and to better mechanical properties of the weld.

Air Products offers a full range of standard shielding gas mixtures for MIG/MAG welding for all common material types.

MIG (metal inert gas) and MAG (metal active gas) welding are widely used wherever medium and high fusion rates are required. Both techniques use a DC arc burning freely between the workpiece and a wire electrode, which functions simultaneously as a power carrier and a source of filler metal. . For MIG welding, the gas is inert: argon or an argon-helium mix. MAG welding uses a mixture of argon with an active gas such as oxygen, CO2 or both.

Our standard gases are available in traditional cylinder sizes at 200 bar and 300 bar cylinder pressure.

Other Applications

Contact Information

Product NameDescription/BenefitsDownloads
Gases

Maxx® Gases
Argon

The primary function of the shielding gas in gas shielded arc welding has been to protect molten and heated metal from the damaging effects of the surrounding air and to provide suitable conditions for the arc. If air comes in contact with the molten or heated metal, the oxygen in the air will oxidise the metal, the nitrogen might cause porosity or brittleness in the weld metal, and moisture from the air might also cause porosity. Argon (Ar) is an inert gas. This means that it does not oxidise and that it has no effect on the chemical composition of the weld metal. Argon is the main component in most shielding gases for GMA and GTA welding.

The primary function of the shielding gas in gas shielded arc welding has been to protect molten and heated metal from the damaging effects of the surrounding air and to provide suitable conditions for the arc. If air comes in contact with the molten or heated metal, the oxygen in the air will oxidise the metal, the nitrogen might cause porosity or brittleness in the weld metal, and moisture from the air might also cause porosity. Argon (Ar) is an inert gas. This means that it does not oxidise and that it has no effect on the chemical composition of the weld metal. Argon is the main component in most shielding gases for GMA and GTA welding.

Linx® Gases
Alulinx®

For aluminium. Alulinx®shielding gas has been specifically designed for high quality welding of aluminium and its alloys. A multi-purpose shielding gas, specially designed for MIG and TIG welding aluminium and its alloys across all material thickness.

For aluminium. Alulinx®shielding gas has been specifically designed for high quality welding of aluminium and its alloys. A multi-purpose shielding gas, specially designed for MIG and TIG welding aluminium and its alloys across all material thickness.

UHP Gases
Speciality Gases Mixtures

Tailor-made mixtures to weld very special materials, most of the time micro additions in argon or argon/helium base, are available in the Air Products' shielding gas range.

Tailor-made mixtures to weld very special materials, most of the time micro additions in argon or argon/helium base, are available in the Air Products' shielding gas range.

Audit Services/Leak Detection

Our applications engineers can work with your plant personnel to analyse and understand your entire process. Based on that analysis and your needs, they can recommend process improvement solutions that can help you enhance product quality and consistency, plus optimise gas use. Air Products' services include leak-checking, furnace profiling, analytical calibration, gas analysis process troubleshooting and overall process review.

Our applications engineers can work with your plant personnel to analyse and understand your entire process. Based on that analysis and your needs, they can recommend process improvement solutions that can help you enhance product quality and consistency, plus optimise gas use. Air Products' services include leak-checking, furnace profiling, analytical calibration, gas analysis process troubleshooting and overall process review.

Training

Training can include gas atmosphere safety, properties of gases, metal treating applications, NFPA 86, piping and flow control panel requirements and troubleshooting for atmosphere problems. This information can help keep your furnace operations safe and help prevent accidents.

Training can include gas atmosphere safety, properties of gases, metal treating applications, NFPA 86, piping and flow control panel requirements and troubleshooting for atmosphere problems. This information can help keep your furnace operations safe and help prevent accidents.

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